AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Gear Helical |
| Federal Supply Group (FSG) | Mechanical Power Transmission Equipment |
| Federal Supply Class (FSC) | 3020 Gear Pulley Sprocket and Transmission Chain |
| National Item Identification Number (NIIN) | 00-418-0789 (004180789) |
| NCB Code | USA (00) |
| Manufacturer | Timken Gears And Services Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAQL | BODY STYLE | PLAIN,SOLID |
| AGJS | PITCH DIAMETER | 3.8120 INCHES NOMINAL |
| AJLA | TEETH QUANTITY | 61 |
| ANTP | BORE STYLE | W/ KEYWAY BOTH ENDS |
| CWCD | NOMINAL OUTSIDE DIAMETER | 3.9120 INCHES |
| CWMW | TEETH TYPE | DOUBLE HELIX,SOLID |
| CWNH | TOOTH FORM | STANDARD |
| CWNM | TOOTH DIRECTION | RIGHT |
| CWPP | PRESSURE ANGLE | 20.0000 DEGREES |
| CWPZ | HELIX ANGLE | 30.0000 DEGREES |
| CWRM | FACE NOMINAL WIDTH | 2.000 INCHES |
| CWRS | BORE NOMINAL DIAMETER | 1.438 INCHES BOTH ENDS |
| CWSN | KEYWAY NOMINAL WIDTH | 0.375 INCHES BOTH ENDS |
| CWSR | NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM | 0.906 INCHES BOTH ENDS |
| FEAT | SPECIAL FEATURES | 1/16 IN. BY 45 DEG CHAMFER ON BORE BOTH SIDES |
| MATT | MATERIAL | STEEL COMP 1040 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL AND AISI/SAE 1040 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | HUBLESS |
| Relevant Components for NSN - 3020-00-418-0789, 3020004180789 | ||||
| 3040-01-291-1651 (3040012911651) | 3020-00-782-0071 (3020007820071) | 3040-00-855-5707 (3040008555707) | 3040-01-203-5461 (3040012035461) | |
| 3040-01-038-7738 (3040010387738) | 3040-01-221-8947 (3040012218947) | 3040-00-802-4446 (3040008024446) | 3010-01-225-2485 (3010012252485) | |
| 3020-01-299-3888 (3020012993888) | 3020-01-449-9723 (3020014499723) | 3030-00-868-3021 (3030008683021) | 3010-01-419-8810 (3010014198810) | |
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